Nut-lock.



M. W. INGBAHAM.

NUT LOCK. APPLICATION FILED NOV. 18, 1910.

Patented June 13, 1911.

, 5] n00 1-1 fQ'c I wibne/ooao MATTHEW w. INGBihHAM,

or enshr- BAY, nova scours, CANADA.

NUT-LUCK.

Specification of letters Patent.

Patented dune 13, 1911.

Application filed November 18, 1510. Serial No. 593,212..

To all whom may concern.

Be it known that l, MATTHEW W. lNeRA- HAM, a subject of the King ofGreat Britain, residing at Glace Bay, in the county of Cape Breton,Province of Nova Scotia, Canada, have invented certain new and usefullinprovements in Nut-Leeks, of which the fol lowing is a specification,reference being bad therein to the accompanying drawing.

-.'lhis invention relates to an improvement in. nut locks and it isembodied in thecon struction hereinafter described and defined in theclaims.

a It. is now well known that to secure a nut on a bolt againstaccidental. loss or escapement, what is known ass; cotter pin islargelyemployed. By using a cotter pm which is projected through a perforationin the end of the bolt, there is secured the advantages of preventingaccidental loss of the nut, while on the other hand, upon ti gl teningthenut the cotter pin does not and cannot serve as a means for securingor helding. the nut in its adjusted position on the bolt. My invention.is designed. primarily to provide a pin securing device which willprevent the escape of the nut from the bolt and which will also beprovided with means for holding the nut in its various positions ofadjustment.

Heretofore, it has been suggested to form a split pin or cotter pin.with a projection having arms embracing a nut. In such constructmns, itwas necessary to embrace the nut to prevent the nut holder from turninglaterally. This embracing feature neccs sarily involved the requirementof (tillerently formed embracing parts, the formation being that toaccord with the peculiar or special character of the nut.

My invention is designed to be applicable to any form of nut and isintended to avoid the necessity of embracing securing projections andstill at the same time to preserve the advantages and secure a veryrigid structure of the pin type, the structure being adapted to hold thenut in its different positions of adjustment, to be easily applied andto be very cheaply manufactured.

- In the accompanying drawing, l. have shown. the preferred and modifiedform of the invention, but it is to be understood that various changescan be made without departing from the nature and principle thereof.

-Fig; 3 is a perspeeti Figure 1 is a ration of'the improvement applied50 bolt with the nut thereon, Fig. 2 is an end view of the same, view ofthe article, Fig. i is a view of a modified form in side elevation, andFight? is an end elevation- A designates a bolt of any convenientformation having a threaded end part and B represents a nut. The end ofthe bolt is perforated in a well known manne j The scour-111g pinforming the subject matter of the invention comprises substan tially apin part 0 convenientlyof thesplit type and of length sulheient toproject through the opening in the bolt and beyond the same, so that theextreme end parts can be turned up in opposite directions, as is usual.The pin C has an enlarged head part I) of a width substantially that ofthe diametor of the bolt. This head part is fashioned on its lower edgeto fit substantially the contour of the bolt. Thereby when the pin is inposition on the bolt, the head will embrace opposite'sides of the bolt.Extending at right angles conveniently from the upper part of the headis a fiat arni portion D,

flat arm portion. will bear directly on the nut i and thereby preventany turning of the nut on the bolt.

In application, whenthe nut has been tightened up sufficiently on thebolt-t0 suit the requirements, the pin is passed through the opening inthe bolt and the head is drawn down onto the bolt, the lower end of thepin being separated and bent up so as to lock the head firmly inposition. ,Inthis position, the arm will project over the wrench holdportionof the nut and thereby hold it firmly in position. movement ortendency to movement is resisted by the bolt spanning part of the head.It will also be observed that by this construction any tendency of thepin to be bent or broken is materially. resisted by the head partandtherebya'very strong and-rigid structure is provided. It will also benoted that by having a single arm member, nuts of different types may besecured in position, it being necessary only to project the arm over oneof the flat surfaces of the nut.

Any lateral bolt when bent over.

head part is the pin G entering the opening I do not wish to be limitedto the special construction shown, as the' rigidly secured pin and nutfastener may be varied more or less and in this connection were it founddesirable, the shape of the arm for certain purposes could be changed sothat parts other than the single flat portion of the nut constructionmight be employed, While the or perforation in the bolt. In applyingthis modified form, the ring-extension of the head is conveniently madeto stand outward, as shown in dotted lines, the pin being inserted inthe opening in the bolt. part of the head is by suitable pressure bentinwardly around the end of the bolt. This prevents the escape'of the pinfrom the opening and retains the arm in position against lateralmovement.

Having thus described the invention, What is claimed as new and desiredto be secured by Letters Patent is:

1. In a device of the character described,

a pin part adapted to bepassed through an opening in a bolt, a head atthe upper end of the pin having. parts designed to embrace the bolt anda securing arm part extending ,outwardly from the head adapted tooverlie a nut 0n the bolt and secure the same in position.

2. As an artlcle of manufacture, a nut The ring locking devicecomprising a head shaped to engagea bolt, a split pin extending from thehead, and a nut securing arm extending'outwardly at an angle to thehead, substantially as described.

3. The combination With a bolt having a perforated end part and a nut onthe bolt,

ofi a nut locking device havinga pin part ionetltq fit the upper surfaceof the bolt, and

a tion with a boltandfa nut, the former havx z ing a perforation theren,\of a dev ce for securingft e'l nut in positiomand aga1nst removalcomp g-a'lieadOpartembraclng the sides offt bplt arranged pini'ada eforation, and an head part longitudin toipassfintqlsaid perextending'from the of the .ebolt "and i overlying the nutg fj' substant ally described. 5. The combination with abholt and nut, the former having aperforation therein, of a device for securing the nut imposition andagainst removal comprising a heagpnr tsto embrace the bolt, a pinextending 'ex'te ndingthrough the perforation, a head part. from whichthe pin extends and fashandi hayin g a centrally i-pneae-g head to bepassed through the bolt aperture and provided with an end portion to bebent. out of alinement With the bolt aperture, and

"a securing portion extending from the head to overlie the nut on thebolt and hold the same in position. r

In testimony whereof I afiix my signature in presence of two witnesses.

MATTHEWV' W. INGRAHAM. lVitnesses:

L. S. BACON,

CALVIN T. M'ILANS.

